Welt-skiving machine.



J. B. HADAWAY. WELT, SKIVING MACHINE. APPLIOATI 0N1ILEDMAB.18,1903.RENEWED MAB..21.1914.

1,101,538, Patented June '30, 1914.

4 SHEETS-SHEET 1.

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J. B. HADAWAY.

WELT SKIVING MACHINE.

APPLICATION FILED MAR.18, 190s. RENEWED MAR; 21, 1914.

1 9 1 0 1,53 PatentedJune 30,1914.

4 SHEETS-SHEET 2.

INVENTOR e im mfi wz WW I E \A/I'TN asses COLUMBIA PLANDOIIAM60.,WAIMINOTON, D. c.

J. B. HADAWAY.

WELT SKIVING MACHINE.

APPLIOATION FILED MAR. 18, 1903. RENEWED MAR. 21. 1914.

Pateanted. June 30, 1914.

4 SHEETS-SHEET 3.

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.T. B. HADAWAY.

WELT SKIVING MACHINE.

v APPLIOATION FILED MAR. 18, 1903. RENEWED MAR. 21. 1914. j m ggPatented June 30,1914.

4 SHEETSSHEET 1.

COLUMBIA PLANOGRAPH r WASHINGTON. D. c.

LtTE eras r a r JOHN B. HADAWAY, OE BROCKTON, MASSACHUSETTS, ASSIGNOR TOUNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OFNEW JERSEY.

morass.

Application filed March 18, 1903, Serial No. 148,311.

To aZZ whom it may concern:

Be it known that I, J 01 m B. HADAWAY, a citizen of the United States,residing at Brockt-on, in the county of Plymouth and State ofMassachusetts, have invented certain new and useful Improvements inlVelt- Skiving Machines; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

The present invention relates to welt skiving machines adapted to removea skiving from the lower outer edge of the welt of a welted shoe at theshank portion of the shoe after the welt has been attached to the upperand insole.

The invention is intended primarily as an improvement on welt skivingmachines which skive the welt before the outsole has been applied to theshoe, but certain features thereof are equally applicable to other weltskiving machines as, for instance, machines designed to act upon theshoe after the outsole has been laid thereon but before the outsole andthe welt are permanently secured together by the outseam.

The object of the present invention is to provide an improved machine bywhich the welt of a welted shoe can be skived upon its lower outer edgeat the shank portion of the shoe in a satisfactory manner withoutliability of injuring the welt or the other portions of the shoe.

A feature of my invention contemplates providing a welt skiving machinehaving a skiving knife arranged to remove a skiving from the lower outeredge of a Welt with two guides for guiding the shoe during the skivingoperation, one guide being arranged to enter the crease between theupper and the welt and bear against the inseam above the welt, and theother guide being arranged to engage the inseam below the welt. By theprovision of these two guides the correct position of the shoe withrelation to the skiving knife can be readily maintained at all times andthe stitches of'the inseam are held out of contact with the cutting edgeof the skiving knife regardless of the manner in which the shoe ismanipulated. The guide above referred to which engages the inseam belowthe welt constitutes a guard for preventing the skiving knife fromcutting the Specification of Letters Patent.

WELT-SKIVING MACHINE.

Patented June 30, 1914.

Renewed March 21, 1914. Serial No. 826,442.

stitches of the inseam. I believe that I am the first to provide a weltskiving machine with a guard for this purpose, and I accordinglyconsider a feature of my invention to consist in providing a weltskiving machine comprising a skiving knife arranged to remove a skivingfrom the lower outer edge of the welt, with a guard for preventing theskiving knife from cutting the stitches of the inseam.

Another feature of my invention consists in an improved form of skivingknife, the novel features of which and the advantages secured therebywill be hereinafter explained.

In addition to the features of invention above referred to, my inventionalso consists in certain devices, combinations, and arrangements ofparts hereinafter described and claimed, the advantages of which will beobvious to those skilled in the art.

A preferred form of my invention is illustrated in the accompanyingdrawings, in which Figure 1 is a View in side elevation of a weltskiving machine embodying the same; Fig. 2 is a view in front elevationof the machine illustrated in Fig. 1; Fig. 3 is a plan view of themachine illustrated in Fig. 1; and Figs. 4, 5, 6 and 7 are views of theskiving knife, Fig. 4 being a plan view, Fig. 5 an underneath plan view,Fig. 6 an end view, Fig. 7 a side view thereof and Fig. 8 is a view infront elevation on an enlarged scale of the front portion of themachine, and also illustrating in section a portion of a shoe, the weltof which is between the work support and feed roll in position to beacted upon by the skiving knife.

Referring to the drawings 1 indicates the lower or base portion of themachine frame and 2 an arm or head pivoted thereto at 3 so as to becapable of a vertical swinging movement.

4 indicates the work support rotatably mounted upon an inclined spindlesecured to the forwardly projected portion of the base 1. This worksupport is frusto-conical in shape and its supporting spindle is so arranged that the portion of the surface of the support which is uppermostlies in substan tially a horizontal plane. The work support enters thecrease between the upper and the welt of the shoe so that it not onlysupports the welt in position to be acted upon by the skiving knife butalso acts as a guide to determine the position of the shoe. A bevel gear5 is secured to the work support and meshes with a bevel gear 6 upon theshaft 7 mountedin bearings in the base 1 of the machine. A gear 8secured to the shaft 7 meshes with a gear 9 secured to the main drivingshaft 10 journaled in hearings in the base 1. Through the connectionsabove described the work support t is positively rotated from the maindriving shaft in a direction to feed the welt against the skiving knife.On account of the frusto-conica l shape of the work support theperipheral speed of the surface in contact with the welt increases fromthe outer edge of the welt toward the inner edge. The work support thustends to feed the inner edge of the welt faster than the outer edge andfacilitates turning the shoe to keep the shoe in contact with the worksupport at all points along the rentrant curve of the shank.

Above the work support 4: and in position to cooperate therewith infeeding the welt to the skiving knife is a corrugated feed roll 11 whichis fast upon the outer end of a shaft 12 j ournaled in bearings in theswinging head 2. To the shaft 12 is secured a gear 13 which meshes witha gear 14: which in turn meshes with a gear 15 upon the shaft 7 thearrangement of the gears being such that the feed roll 11 is rotatedwith the work support 4: but in the opposite direction so as tocooperate with the work support to feed the welt against the skivingknife. The shaft 12 is held from longitudinal movement in its bearingsby means of two collars 16 secured to the shaft and bearing against theends of the bearings for the shaft in the head 2. These collars areadjustably secured to the shaft 12 by means of set screws 17. Byadjusting the collars 16 on the shaft 12 the shaft can be movedlongitudinally to adjust the feed roll with relation to the work support4; so as to bring the feed roll and work support into the properrelative positions to act upon the welt to the best advantage.

The feed roll is pressed toward the work support by means of a spring 18coiled around a rod 19 pivotally connected at its upper end to the head2 and passing through a lug 20 on the base 1, the spring being interposed between the lug 20 and an adjusting part 21 having ascrew-threaded engagement with the lower end of the rod. The spring 18forces the head 2 downward and holds the roll 11 with a yieldingpressure against a welt supported upon the work support 4. The forwardend of the head 2 is guided by .means of a vertical guideway in the base1 and its downward movement is limited by means of a stop screw 22having a screw-threaded engagement with a split lug 23 on the head andengaging a lug 24 on the base 1. The stop screw 22 is clamped rigidly inany position to which it is adjusted by means of the clamping bolt 25.

The skiving knife is indicated at 26. This knife is held rigidly inposition with its cutting edge 26 as near as practicable to the line ofcontact of the feed roll and work support with the welt and in suchrelation to the feed roll and work support as to remove a skiving fromthe lower outer edge of the welt as it is forced against the knife. Theshoe is placed in the machine with the insole uppermost so that theupper surface of the welt, that is the surface which is upper most inthe completed shoe, rests upon the work support and the lower surface ofthe welt is engaged by the feed roll. The skiving knife is provided withbevel 27 upon its lower surface or the surface which lies next to thewelt during the skiving operation which meets the upper surface 27 toform the cutting edge 26 of the knife and is also provided at its endwith a bevel 28 upon the same surface as the bevel 27. The skiving knifeis placed in the machine so that the surfaces 27, 27 a which meet toform the cutting edge 26 of the knife are inclined upwardly anddownwardly at equal angles to the plane of feed. As the skiving isremoved from the welt it is bent upwardly by the surface 27'" in passingby the knife and at the same time the outer edge of the welt is bentdownwardly by the surface 27. The inner edge of the welt close to theinseam, however, cannot be so bent and in order to allow the knife toact upon the welt close to the inseam, it is cut away at its end back ofthe cutting edge by means of the bevel 28 so as to relieve the pressureof the body portion of the knife on this part of the welt. The bendingof the outer edge of the welt downwardly to afford clearance for theknife is permitted by the shape and arrangement of the work support, thesupporting surface being curved and the curvature increasing from theinner toward the outer edge of the welt. The knife is also provided atits end with an upwardly projecting rib 29 which extends rearwardly fromthe cutting edge of the knife at substantially right angles thereto.tion of this rib is to bear against the inseam and prevent the shoe frombeing moved inwardly a sufficient distance to bring the stitches of theinseam into contact with the cutting edge of the knife. The rib thusserves as a guard for preventing the knife from cutting the stitches ofthe inseam and also as a guide which cooperates with the work support 4in guiding the shoe, the work support engaging the inseam above the weltand the rib engaging the inseam below the welt.

In order to allow the cutting edge of the The funcknife to be broughtinto the desired position with relation to the work support and feedroll, means are provided for adjusting the knife and for rigidlysecuring it in adjusted position. As shown in the drawings four separateadjustments for the knife are provided, namely, a horizontal adjustmenttransversely to the direction of feed, a substantially horizontaladjustment in the direction of feed, an angular adjustment and avertical adjustment.

The horizontal adjustment of the knife transversely to the direction offeed is secured by clamping the shank of the knife by means of aclamping bolt 30 between the clamping jaws of an angular support 31.

The width of the inseam of a welted shoe varies with the thickness ofthe welt and the construction above described provides for a relativeadjustment of the crease guide and work support a and the skiving knifeto compensate for this variation and cause the knife to cut always closeup to the inseam. In the construction illustrated in the drawings itwill be noted that the knife is moved in a direction parallel with theline of contact of the feed roll with the welt so that the position ofits cutting edge with relation to the curved surfaces of the feed rolland work support remain substantially unchanged.

To enable the knife to be adjusted in the direction of the line of feedto bring its cutting edge close to the line of contact of the feed rolland work support with the surface of the welt, the angular support 31 ismounted to slide on a guideway formed on a support 32 and is secured inposition thereon by means of a clamping bolt 33 passing through a slotin the support 31.

The angular adjustment of the skiving knife is secured by mounting thesupport 32 upon a segmental guideway on a support 33, the support 32being secured in position on the support 33 by means of a clamping bolt34: passing through a segmental slot in the support 32. The segmental.guideway upon which the support 32 is movably mounted is concentric withthe end of the skiving knife so that when the support 32 is adjustedupon the support 33 the angle of the cutting edge of the knife with thesurface of the work support 4 is varied. By means of this angularadjustment of the knife therefore the bevel produced upon the lowerouter edge of the welt can be varied as desired.

The vertical adjustment of the knife is secured by mounting the support33 upon a vertical guideway on the base 1 of the machine frame. Thesupport 33 is adjusted vertically by means of an adjusting screw 35,held against longitudinal movement in a bearing formed in a projection36 on the base 1 and having a screw-threaded engagement at its lower endwith the support 33. Bolts 37 passing through vertical slots in thesupport 33 secure the support rigidly in its adjusted position. Byadjusting the support 33 the skiving knife can be adjusted verticallywithout changing its angular position with relation to the surface ofthe work support to adapt the machine for operation upon welts ofdifferent thicknesses or to vary the thickness of the skiving removedfrom the welt.

The operation of the machine illustrated in the drawings has beenindicated in the preceding description and will be readily understood bythose skilled in the art.

Having thus indicated the nature and scope of my invention and havingillustrated and described a machine embodying a preferred form thereof,I claim as new and desire to secure by Letters Patent of the UnitedStates 1. A welt skiving machine, having, in combination, a feed roll, acombined crease guide and work support, and a skiving knife arranged toremove a skiving from the lower outer edge of the welt, the feed rolland work support being relatively adjustable longi tudinally of the feedroll, substantially as described.

2. A welt skiving machine. having, in combination, a skiving knife forremoving a skiving from the lower outer edge of the welt, a work supportarranged to support the welt of a welted shoe in position to be actedupon by the skiving knife, a feed roll and a guard for preventing theknife from cutting the stitches of the inseam, substantially asdescribed.

3. A welt skiving machine, having, in combination, a skiving knife forremoving a skiving from the lower outer edge of the welt, a work supportarranged to support the welt of a welted shoe in position to be actedupon by the skiving knife, and a feed roll, the work support and feedroll being relatively adjustable longitudinally of the feed roll,substantially as described.

4:. In a welt skiving machine, a skiving knife for removing a skivingfrom the lower outer edge of the welt provided with a guard forpreventing the knife from cutting the stitches of the inseam,substantially as de scribed.

5. In a welt skiving machine, a skiving knife for removing a skivingfrom the lower outer edge of the welt provided at its end with aprojecting rib to prevent the knife from cutting the stitches of theinseam, substantially as described.

6. In a welt skiving machine, a skiving knife for removing a skivingfrom the lower outer edge of the welt provided at its end with a bevelon the surface which contacts with the welt to relieve the pressure ofthe body portion of the knife on the welt, substantially as described.

7. In a welt skiving machine, the skiving knife 26 provided with theguard 29 to prevent the knife from cutting the stitches of the inseamand the bevel 28 to relieve the pressure of the body portion of theknife on the welt, substantially as described.

8. A welt skiving machine, having, in combination, a guide arranged toengage the inseam of a welted shoe above the welt, .a guide arranged toengage the inseam below the welt, and a skiving knife arranged to removea skiving from the lower outer edge of the welt, substantially asdescribed.

9. A welt skiving machine, having, in combination, a guide arranged toengage the in seam of a welted shoe above the welt, a stationary guidearranged to engage the inseam below the welt, and a skiving knifelocated on the same side of the inseam as said stationary guide arrangedto remove a skiving from the lower outer edge of the welt, substantiallyas described.

10. In a welt skiving machine, a skiving knife for removing a skivingfrom the lower outer edge of the welt cut away along its end back of thecutting edge to relieve the pressure of the body portion of the knife onthe welt, substantially as described.

11. A welt skiving machine, having, in combination, a crease guide andwork support, a feed roll and a skiving knife arranged to remove askiving from the lower outer edge of the welt, said crease guide andskiving knife being relatively adjustable in a direction parallel withthe line of contact of the feed roll with the welt, substantially asdescribed.

12. A welt skiving machine, having, in combination, a feed roll, a worksupport, and a skiving knife arranged to remove a skiving from the lowerouter edge of the welt, said skiving knife being adjustable in the planeof the welt transversely to the direction of feed and independentlyadjustable in the direction of feed, substantially as described.

13. A welt skiving machine, having, in combination, a skiving knife forremoving a skiving from the lower outer edge of the welt provided at itsend with a bevel on the surface which contacts with the welt to relievethe pressure of the body portion of the knife on the welt and means forsupporting the welt of a welted shoe in position to be acted upon by theknife and for feeding the welt to the knife, substantially as described.

14. A welt skiving machine, having in combination, means for supportingand feeding the welt of the welted shoe and the skiving knife 26arranged to remove a skiving from the lower outer edge of the welt, saidknife being provided with the guard 29 to prevent the knife from cuttingthe stitches of the inseam and with the bevel 28 to remove the pressureof the body portion of the knife on the welt, substantially asdescribed.

In testimony whereof I vaffix my signature, in presence of twowitnesses.

JOHN B. HADAWAY.

WVitnesses:

FRED O. FISH, ALFRED H. HILDRETH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

